dubbo开启access log步骤

1，maven依赖

maven version由2.5.3调整为2.5.3.2

<dependency>

    <groupId>com.alibaba</groupId>

    <artifactId>dubbo</artifactId>

    <version>2.5.3.2</version>
</dependency>
<dependency>

    <groupId>com.edianzu.qos.logback</groupId>

    <artifactId>logstash-driver</artifactId>

    <version></version>##与项目中logback版本一致，目前该插件涵盖了logback从0.2x版本到到1.2的所有稳定版本。
</dependency>

2，开启dubbo访问日志

<!-- 开启 dubbo 访问日志 -->

<dubbo:protocol accesslog="true" />
 
<!-- 指定 dubbo 适配 slf4j -->

<dubbo:application logger="slf4j" />

3，在logback.xml中配置

<logger name="dubbo.accesslog" level="info" additivity="false">

    <appender-ref ref="accesslogAppender"/>
</logger>

4，配置 log4j2 Appender

4.1，定义日志pattern

<conversionRule conversionWord="ex" converterClass="com.edianzu.qos.logback.StackTraceConverter" />

<conversionRule conversionWord="tpc" converterClass="ch.qos.logback.classic.pattern.ThrowableProxyConverter" />

<property name="pattern" value="[%d{yyyy-MM-dd}T%d{HH:mm:ss.SSS+0800}] [%p] [%file:%line] [%ex] %tpc %m %n" />

4.2，配置

<property name="logPath" value="/data/logs/【项目名】"/>

<appender name="accesslogAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">

    <file>${logPath}/access/access.log</file>

    <append>true</append>

    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

        <FileNamePattern>${logPath}/access/%d{yyyyMMdd}/access-%d{yyyyMMdd}%i.log.zip

        </FileNamePattern>

        <MaxHistory>${maxHistory}</MaxHistory>

        <TimeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">

            <MaxFileSize>${maxFileSize}</MaxFileSize>

        </TimeBasedFileNamingAndTriggeringPolicy>【自定义删除过期数据，供参考】

    </rollingPolicy>

    <layout class="ch.qos.logback.classic.PatternLayout">

        <pattern>${pattern}</pattern>

    </layout>
</appender>